The Grove - Gas Sensor module is useful for gas leakage
detecting. It can detect LPG, i-butane, methane,
alcohol, Hydrogen, smoke and so on. The sensitivity can be adjusted using the on-board potentiometer, and you'd use this sensor by reading the analog pin to which it is connected. Please use these sensors only in controlled experiments! Combustible gases and fumes are very dangerous!

Each Grove - Gas Sensor Kit consists of one of the four gas detectors, please refer to the table below for details.